Synonymes official (anglais)

Nom
- administrator : director, executive, leader, comptroller
- referee : umpire, linesman, adjudicator, judge

Adjectif
- authorized : authorised, ordered, endorsed, sanctioned, approved
- customary : formal, fitting, suitable, befitting, established, ceremonious, proper
- definite : authentic, reliable, authoritative, unquestionable, indisputable, indubitable, absolute